For those of you that use Oxi type products in your wash, here is a better alternative that is the same price but about three times as effective, and it dissolves in cold water, unlike oki.
Sodium Percarbonate (Amazon.com product link shortened)
It breaks down to Oxygen, water, and soda ash.
Oxi, it Sodium Percarbonate laced with soda ash and sometimes toxic perfumes and surfactants. And the amount of soda ash increases as the quality goes down.
Here is to clean cloths!